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Which of the following phenomena is used to explain the rectilinear propagation of light in the wave theory of light?
- A.Interference
- B.Diffraction
- C.Polarization
- D.Huygens principle
Show correct answer & step-by-step solution
Correct answer: D — Huygens principle
Solution
Huygens principle states that every point on a wavefront acts as a source of secondary wavelets. This principle successfully explains the rectilinear propagation of light as the wavefront advances.
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